Business Phone Systems

Previous Thread
Next Thread
Print Thread
Rate Thread
Page 2 of 3 1 2 3
Joined: Oct 2010
Posts: 250
Member
Offline
Member
Joined: Oct 2010
Posts: 250
Close enough for government work as they used to say!


Forty six years and still fascinated with Telecommunications!
Atcom VoIP Demo
VoIP Demo
Joined: Jul 2005
Posts: 860
Member
*****
Offline
Member
*****
Joined: Jul 2005
Posts: 860
Originally Posted by Captain Crunch
Thanks for all the insight. With this info and some Google research, let me see if I have this right:
From what y'all have said, it appears that a dedicated T1 line goes from the central office where the DC exchange is to my local central office here in Virginia.
At the local office, the T1 is divided and one channel is connected to my telephone.
Dumbed down to layperson understanding (that's me), is this the general idea?

General idea is close... Yup.
There probably is NOT a dedicated T1 from the DC switcher to your serving office. Telco’s maintain inter-office T1 capacity (and higher of course) between exchanges/central-offices. Part of the process of building your FX (foreign exchange) circuit when you first ordered it, was picking the dedicated path over various channelized T1 facilities o get from A (your serving switch in DC) to your serving wire center.


-----------------------
Bryan
LEC Provisioning Engineer
Cars -n- Guitars Racin' (retired racer Oct.'07)
Joined: Aug 2002
Posts: 2,608
Moderator-ESI, Shoretel
***
Offline
Moderator-ESI, Shoretel
***
Joined: Aug 2002
Posts: 2,608
captain .... i have to ask

is this you??

https://en.wikipedia.org/wiki/John_Draper

kind of a cult hero!

Joined: Jan 2011
Posts: 31
Member
Offline
Member
Joined: Jan 2011
Posts: 31
I realize the OP was three months ago but I have some answers for the curious.

FIRST:
10/09/12 18:53 ET - NPC 699 GETTING FAIL/CGA, OOF, ES,CRC'S

I am not sure what equipment/device this print out would have come from but as stated above it means network port card 699 is alarming for failure, carrrier group alarm, out of frame alarm, errored seconds and cyclic redundancy check errors.

SECOND:
10/09/12 18:54 ET - M 18:02:02 01,00 3 UTL QRY STATE NPC 0699TYPEOOS FAIL PEST CGA OOF SLIP ER ES SES0 1 - R 008 000 CL 00020 000THRESHOLDS 255 004 3 6COMPL³DC103 IW 7F 04 LN MSG:COFA CRC6 BPV FRER--- 01518 00000 -----

This one looks like it came from a DACS or digital cross connect system. The language is PDS (don't remember what that stands for) and for one Tellabs 532/5320 equipment uses this language. When these messages are cut/pasted in to text files the spacing and line feed usually doesn't come with it. On the original screen or printout it probably looked something like this:

10/09/12 18:54 ET - M 18:02:02 01,00 3 UTL QRY STATE NPC 0699
TYPE OOS FAIL PEST CGA OOF SLIP ER ES SES 0
1 - R 008 000 CL 000 20 000
I am not sure all of the second line is on the proper place as some fields are skipped for some types of cards. Going from memory as I don't have my handy command reference here at home. Funny, I see these alarms every day and can't tell you the format without one in front of me. Carrier Group Alarm=Red (no frame form distant end), maybe 8 frame alarms (loss of frame time exceeded a threshold).

THRESHOLDS 255 004 3 6 COMPL
These are the thresholds for major or minor alarms that can be set for different ports. Usually left at the default. I recognize the first two as major/minor slip thresholds. I thing the next two are error rate thresholds (10-3, 10-6) but may be for OOF or LOF (frame hits)
³DC103 IW 7F 04 LN MSG:
COFA CRC6 BPV FRER
--- 01518 00000 -----

This one refers to a different T1. DC and NPC have become sort of interchangeable. I'm not even going to try to sort out the numbers on line two.

If inquiring minds want to know more, I will try to find time to look this up in the trusty command reference manual.

Captain Crunch and others, yup, you basically have it right. Any DS0 can be directed to any other DS0 in most systems through a DACS. There are as always exceptions. At some point, probably near to the Capn's home, the DS0 is converted to a telephone loop. Probably through a channel bank FXS card. Unless the Capn has some high dollar type "T1" or "DS0" phone.


Regards

Joined: Jan 2011
Posts: 31
Member
Offline
Member
Joined: Jan 2011
Posts: 31
The spacing didn't come out quite right on the post either.


Joined: Dec 2005
Posts: 9,105
Likes: 2
Spam Hunter
*****
Offline
Spam Hunter
*****
Joined: Dec 2005
Posts: 9,105
Likes: 2
Whoops! The OP was made over a year ago (2012). blush


I Love FEATURE 00
Joined: Jan 2011
Posts: 31
Member
Offline
Member
Joined: Jan 2011
Posts: 31
Well, hell. I was born over 60 years ago. You expect me to rememeber what year it is?

Hope you enjoyed my inputs anyway.

Now, if I can just remmeber where I am supposed to go to work tomorrow...

Joined: Jan 2011
Posts: 31
Member
Offline
Member
Joined: Jan 2011
Posts: 31
And how to speel

Joined: Dec 2005
Posts: 9,105
Likes: 2
Spam Hunter
*****
Offline
Spam Hunter
*****
Joined: Dec 2005
Posts: 9,105
Likes: 2
Device-wise, I would guess that it came from a Tellabs product...possibly a 530 or Titan-532L DCS.

One of the commands used appears to be UTL::QRY, STATE, NPC 699 <RET>

The Titan-5500 uses TL-1 commands.


I Love FEATURE 00
Joined: Jan 2011
Posts: 31
Member
Offline
Member
Joined: Jan 2011
Posts: 31
Right you are dexman. We just retired a 5500 and upgraded an on site 532 to 5320L. Still have five 532s at remote locations.

I was kind of surprised that the 5320L didn't use TL1.




Page 2 of 3 1 2 3

Moderated by  Silversam 

Link Copied to Clipboard
Forum Statistics
Forums84
Topics93,740
Posts636,417
Members49,619
Most Online5,661
May 23rd, 2018
Popular Topics(Views)
Today's Birthdays
ebernhard, gman1205, Herb Parsons, jdews, nextlevel, ROGER IN FLA
Newest Members
blentz, RockyTop, Homer Domer, Lane, AMS Technology C
49,619 Registered Users
Top Posters(30 Days)
jsaad 7
Toner 6
Who's Online Now
2 members (dagwoodsystems, Curlycord), 102 guests, and 15 robots.
Key: Admin, Global Mod, Mod
Contact Us | Sponsored by Atcom: Business Phone Systems | Terms of Service

Sundance Communications is not affiliated with any of the above manufacturers.
©Copyright Sundance Communications 1998-2022
Powered by UBB.threads™ PHP Forum Software 7.7.5